"siarc" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "en",
        "3": "shark"
      },
      "expansion": "English shark",
      "name": "bor"
    }
  ],
  "etymology_text": "From English shark.",
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "siarc m (not mutable)",
      "name": "cy-noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "cy",
          "name": "Sharks",
          "orig": "cy:Sharks",
          "parents": [
            "Fish",
            "Vertebrates",
            "Chordates",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "shark (fish)"
      ],
      "id": "en-siarc-cy-noun-3Q~ichEw",
      "links": [
        [
          "shark",
          "shark"
        ]
      ],
      "synonyms": [
        {
          "word": "ci môr"
        },
        {
          "word": "morgi"
        }
      ],
      "tags": [
        "masculine",
        "not-mutable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʃark/"
    },
    {
      "rhymes": "-ark"
    }
  ],
  "word": "siarc"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "en",
        "3": "shark"
      },
      "expansion": "English shark",
      "name": "bor"
    }
  ],
  "etymology_text": "From English shark.",
  "head_templates": [
    {
      "args": {
        "1": "m"
      },
      "expansion": "siarc m (not mutable)",
      "name": "cy-noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Rhymes:Welsh/ark",
        "Welsh countable nouns",
        "Welsh entries with incorrect language header",
        "Welsh lemmas",
        "Welsh masculine nouns",
        "Welsh non-mutable terms",
        "Welsh nouns",
        "Welsh terms borrowed from English",
        "Welsh terms derived from English",
        "cy:Sharks"
      ],
      "glosses": [
        "shark (fish)"
      ],
      "links": [
        [
          "shark",
          "shark"
        ]
      ],
      "synonyms": [
        {
          "word": "ci môr"
        },
        {
          "word": "morgi"
        }
      ],
      "tags": [
        "masculine",
        "not-mutable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʃark/"
    },
    {
      "rhymes": "-ark"
    }
  ],
  "word": "siarc"
}